Technology
UberNightSolar
Heating your Geyser Water at Night with UberNightSolar – New & Unique
- Until now Solar Water Heating systems have only ever heated the geyser water during daylight hours
- UberSolar uniquely can also heat geyser water at night with up to an additional 50% of the daytime solar input
How do we do it?
- UberSolar has vented solar manifolds and evacuated tubes that are filled with no pressure water
- The water is heated by solar and that heat in turn is transferred to the geyser water through a heat exchanger in the solar manifolds
- At the end of the solar day, there is residual heat in the solar manifolds and tubes that cools down over night (effectively goes to waste)
- With UberNightSolar the manifolds and solar reticulation are insulated (much in the same way as a thermos) and the water in the solar collector remains hot
- Using the UberTrac or UberSmart Controller, the heat within the solar manifolds and tubes can be transferred into the geyser using the solar 12 volt DC pump and a transformer and mains electricity
- This happens when the Delta T shows that the water temperature differential in the manifolds is 10℃ warmer than the temperature in the geyser
- As an example, if the high pressure water in a 200 litre geyser is at 60℃ at the end of the days solar heating, the low pressure water in the manifolds and evacuated tubes being a separate additional 100 litres will be at about 65℃ to 70℃
- Depending on household hot water consumption in the evening, an average of 35% to 45% can be added to the days electrical saving
- If no hot water from the geyser is used at night, the water in the solar manifolds stays warm, thereby increasing the solar performance during the following day
UberNightSolar
Heating your Geyser Water at Night with UberNightSolar – New & Unique
- Until now Solar Water Heating systems have only ever heated the geyser water during daylight hours
- UberSolar uniquely can also heat geyser water at night with up to an additional 50% of the daytime solar input
How do we do it?
- UberSolar has vented solar manifolds and evacuated tubes that are filled with no pressure water
- The water is heated by solar and that heat in turn is transferred to the geyser water through a heat exchanger in the solar manifolds
- At the end of the solar day, there is residual heat in the solar manifolds and tubes that cools down over night (effectively goes to waste)
- With UberNightSolar the manifolds and solar reticulation are insulated (much in the same way as a thermos) and the water in the solar collector remains hot
- Using the UberTrac or UberSmart Controller, the heat within the solar manifolds and tubes can be transferred into the geyser using the solar 12 volt DC pump and a transformer and mains electricity
- This happens when the Delta T shows that the water temperature differential in the manifolds is 10℃ warmer than the temperature in the geyser
- As an example, if the high pressure water in a 200 litre geyser is at 60℃ at the end of the days solar heating, the low pressure water in the manifolds and evacuated tubes being a separate additional 100 litres will be at about 65℃ to 70℃
- Depending on household hot water consumption in the evening, an average of 35% to 45% can be added to the days electrical saving
- If no hot water from the geyser is used at night, the water in the solar manifolds stays warm, thereby increasing the solar performance during the following day
UberTrac and UberSmart Solar Controllers with Electrical Backup Controllers
- Maximising the benefit of solar requires a good controller
- The UberSmart provides the basic essential functions on your cellphone
- The UberTrac is a very sophisticated on line solar water heating controller combined with off line external monitoring thereby guaranteeing ongoing optimum performance.
Functionality comparisons of UberTrac & UberSmart
| Description and Functions | UberTrac | UberSmart |
|---|---|---|
|
Online - WiFi/Bluetooth Connectivity |
|
|
|
Display on fixed wireless display (option) |
|
|
|
Electric element back up numerous timing settings |
|
|
|
Flexible weekday, weekend back up, timer settings |
|
|
|
Flexible thermostat temperature settings for back up |
|
|
|
Holiday mode settings |
|
|
|
Water temperature Display |
|
|
|
NightSolar option |
|
|
|
Air lock solenoid release |
|
|
|
Manual element override “ON” |
|
|
|
Solar On/Off controlled by Delta △ Differential |
|
|
|
Remote access of all functionality |
|
|
|
Full on line graphic display & analysis |
|
|
|
Offline external 3rd party monitoring (option) |
|
|
|
Available hot water volume |
|
|
|
Electric savings and heat loss stats |
|
|
|
Pump “Siesta” option |
|
|
|
Statistic downloadable for M&V |
|
|
UberSolar Water Heater Types
100 L, 150 L & 200 L
UberSolar Integrated Complete Solar Low Pressure Systems
100 L, 150 L, 200 L & 300 L
UberSolar Integrated Complete Solar Low Pressure Systems
150 L & 200 L with Evacuated Tubes
UberSolar Integrated Complete Solar Low Pressure Systems
150 L & 200 L with Flat Plate Solar
Ubersolar High Pressure Close Coupled Thermo Siphon Systems
100 L, 150 L, 200 L, 300 L & 400 L
UberSolar Split Indirect Pumped Retrofit Solar Systems
100 L, 150 L, 200 L, 300 L & 400 L
UberSolar Split Indirect Pumped Retrofit Solar Systems
Ubersolar manufacture 100 litres, 150 litres, 200 litres, 300 litres, 400 litres, and larger High Pressure Split Indirect Pumped Solar Systems, both Retrofits where we use existing geysers and Complete Systems where we also provide the geysers plumbed together in series using various manufacturers’ tanks .
UberSolar Types of Solar Collector
Low Pressure Evacuated Tube
High Pressure Evacuated Tube with heat pipe riser
Flat Plate Solar Collector
- All solar collector types used by UberSolar are little to zero maintenance, (occasional cleaning)
- All are suitable for inland areas (freeze) and do not require antifreeze or glycol
- All solar collectors are sized to the tank volumes they are heating
| UberSolar types of Solar System | Solar Collector Type |
|---|---|
|
Low Pressure Integrated System |
Low Pressure Evacuated Tubes |
|
High Pressure Integrated System |
High Pressure Evacuated Tubes with Heat Pipe Riser |
|
Electric element back up numerous timing settings |
Low Pressure Evacuated Tubes or Flat Plate |
|
Complete Split High Pressure Pumped unit |
Low Pressure Evacuated Tubes or Flat Plate |
|
Thermosiphon Complete System |
Low Pressure Evacuated Tubes or Flat Plate |
UberSolar Insulation Improves Performance
- Heat loss from geysers is considerable (even the new class B units) particularly at night and in winter
- UberSolar constantly strives to find the best insulation at the most affordable price
- Solar manifolds for the solar at night option require insulation along with all tubing
- Geyser and surrounding pipework also require insulation
- Payback on insulation ranges from as little as 50 days to generally less than 1 year
UberSolar Hot Water Heating Technology
Where we are Different:
- We are the only high pressure systems that can meet 100% of electricity replacement without overheating
- We overcame the problem of overheating in stagnation, when no hot water is being used from the tanks
- We are the first and only solar water heating systems that can produce hot water at night from stored energy
- All systems are ‘plug & play’ enabling flexibility in meeting the different demands of orientation and inclination
- We created the world’s most advanced online solar and electrical back up controller for monitoring and verification
- All systems are almost zero maintenance, incorporating anti reverse siphoning technology
- We are always the cheapest when compared on a ‘like for like basis’ on performance per Rand invested
- We overcame the problem of freeze protection for flat plate collectors
- All our systems are manufactured in South Africa since 2010
Performance Information
| Description – Evacuated Tubes Number | Deemed kWh per 24 hours | Hot Water at 40°C per 24 hours in Litres | Projected Payback Point | 10 Year Estimated Rand Savings |
|---|---|---|---|---|
|
12 EVT |
3.84 |
138 |
30 months |
R65,000 |
|
18 EVT |
5.76 |
213 |
27 months |
R97,000 |
|
24 EVT |
7.68 |
291 |
23 months |
R130,000 |
|
30 EVT |
9.6 |
374 |
20 months |
163,000 |
|
36 EVT |
11.52 |
460 |
24 months |
R195,000 |
|
42 EVT |
13.44 |
551 |
24 months |
228,000 |
|
48 EVT |
15.36 |
645 |
23 months |
R261,000 |
|
60 EVT |
19.2 |
825 |
22 months |
R326,000 |